What is the wavelength of visible spectrum?
-
8500 - 9800 angstrom
-
7800 - 8000 angstrom
-
3900 - 7600 angstrom
-
1300 - 3000 angstrom
C
Correct answer
Explanation
The visible light spectrum ranges from approximately 3900 to 7600 angstroms (390-760 nanometers), covering violet through red. Options A (8500-9800) and B (7800-8000) are in the infrared range, while D (1300-3000) is in the ultraviolet range.